How long is mass effect?

if all you are the main mission quest you can probably breeze through the game at around 5-6 hours. (roughly an hour per major story mission) although there is easily over 20 hours worth of content in extra dialog, side missions, and exploration.

and thats only what you will see on your first play through. its worth buying, playing, and playing again a few months later to experience it again from a different angle.